CN109371775A - Road travel road permeable pavement structure and its laying method - Google Patents
Road travel road permeable pavement structure and its laying method Download PDFInfo
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- CN109371775A CN109371775A CN201811407621.6A CN201811407621A CN109371775A CN 109371775 A CN109371775 A CN 109371775A CN 201811407621 A CN201811407621 A CN 201811407621A CN 109371775 A CN109371775 A CN 109371775A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000010410 layer Substances 0.000 claims abstract description 131
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000002689 soil Substances 0.000 claims abstract description 23
- 238000005728 strengthening Methods 0.000 claims abstract description 23
- 238000005520 cutting process Methods 0.000 claims abstract description 18
- 239000002344 surface layer Substances 0.000 claims abstract description 17
- 239000011159 matrix material Substances 0.000 claims abstract description 12
- 239000000835 fiber Substances 0.000 claims abstract description 7
- 239000011435 rock Substances 0.000 claims abstract description 7
- 238000009825 accumulation Methods 0.000 claims abstract description 4
- 239000004567 concrete Substances 0.000 claims description 18
- 239000010426 asphalt Substances 0.000 claims description 10
- 229920002748 Basalt fiber Polymers 0.000 claims description 7
- 230000004048 modification Effects 0.000 claims description 6
- 238000012986 modification Methods 0.000 claims description 6
- 229920002396 Polyurea Polymers 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 2
- 239000003973 paint Substances 0.000 claims description 2
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- 239000002245 particle Substances 0.000 description 4
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- 238000011161 development Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
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- 238000009738 saturating Methods 0.000 description 2
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- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
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- 238000003912 environmental pollution Methods 0.000 description 1
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- 239000011381 foam concrete Substances 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
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- 239000008187 granular material Substances 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/224—Surface drainage of streets
- E01C11/225—Paving specially adapted for through-the-surfacing drainage, e.g. perforated, porous; Preformed paving elements comprising, or adapted to form, passageways for carrying off drainage
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
- E01C7/325—Joining different layers, e.g. by adhesive layers; Intermediate layers, e.g. for the escape of water vapour, for spreading stresses
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a kind of road travel road permeable pavement structure and its laying methods, and including water shutoff layer, base and the surface layer being set on soil matrix, strengthening layer is equipped between the water shutoff layer and soil matrix；The water shutoff layer includes that rock fiber is interweaved the porous structure and the second waterproof layer for being filled in the porous structure gap that accumulation is formed；The base include set gradually from the bottom to top go to a grassroots level, middle base and upper base, described to go to a grassroots level and upper base includes the first rubble mutually accumulated, the middle base includes geotechnical grid and the second rubble for being filled in geotechnical grid gap；The surface layer includes layer and upper layer below setting gradually from the bottom to top, the cutting optimal includes the first gravel mutually accumulated and the third waterproof layer that is filled in first gravel gap, the upper layer includes the second gravel mutually accumulated and the 4th waterproof layer that is filled in second gravel gap, and the average grain diameter of first gravel is greater than the average grain diameter of the second gravel.
Description
Technical field
The present invention relates to road surface structure technical field, in particular to road travel road permeable pavement structure and
Its laying method.
Background technique
With the continuous development of China's modern industry and being constantly progressive for social economy, Chinese Urbanization step is increasingly
Fastly, city has also gradually been brought in many cities and towns, rural area into.From the point of view of As-Is, Chinese Urbanization construction is remained at
One faster pace of construction, and the construction level of urbanization and quality are also improving always.The Process of Urbanization Construction in China, one
Aspect largely improves living standards of the people, enhances national economy；On the other hand, with the continuous propulsion of urbanization,
The problems such as bring increased population, environmental pollution increasing, groundwater resources scarcity, urban heat land effect, noise and light pollution, gets over
Come more serious.These problems have largely affected the quality of life of city dweller, and have injured city dweller
Physical and mental health.Therefore, the Improvement of Ecological Environment problem in city has had increased to the key problem concerning national economy, becomes
Governments at all levels primarily face and solve the problems, such as.
Currently, causing the most important reason of urban ecological problem to be exactly that urban planning is not perfect, before being mainly reflected in
Most projects under construction (road, house etc.) all use the cement concrete and pitch of a large amount of compact-types in Process of Urban Development
The impermeable materials such as concrete have directly blocked contacting between natural soils and atmospheric environment, cause urban ecological environment de-
From natural environment, or even lose its autonomous updating ability；And this state of isolation is with the continuous development of urbanization, more
Come more serious, urban environment is caused also constantly to deteriorate.Sponge urban construction is the city for solving to encounter in the construction of traditional cities
The effective way of disease problem.
Planned population accounts for the ratio of town site area in 2,000,000 or more big city, urban road land area
Up to 20%.Therefore, municipal road pavement permeableization is the important component of sponge urban construction.Porous pavement has anti-
The excellent characteristics such as cunning, infiltration, wear-resisting, absorbing sound and lowering noise, environmentally friendly beauty, and half-penetration type and full-transparency type porous pavement also have and " can exhale
Inhale " function (rainy day infiltration, water suction；Fine day evaporation water, humidifying air), urban heat land effect can be effectively relieved.Strand
Area, annual rainfall is more, and short time heavy rainfall weather occurs often, and urban waterlogging problem is caused to have generation more.Therefore, strand
Area's sponge urban water-through pavement construction is extremely urgent.
Coastal region belongs to weak soil coverage area mostly.Soft soil foundation meets the characteristic of water softening due to it, at present in weak soil
What area was laid with has good " sponge " characteristic (rainy day infiltration, water suction；Fine day evaporation water, humidifying air) half-penetration type and complete
Saturating formula porous pavement, is only used for non-motorized lane and pavement mostly.For accounting for the runway of the exhausted large scale of town road area,
It also only rests on drainage pavement stage (only top course is permeable), drainage pavement does not have " sponge " characteristic, that is, is only capable of the row of performance
Water effect, does not have interim water storage function.Therefore, how half-penetration type is laid in littoral soft soil area or full-transparency type runway is permeable
Road surface is one of the key technology barrier encountered in current coastal region sponge urban construction.
Summary of the invention
It is a kind of with half-penetration type or full-transparency type runway porous pavement technical problem to be solved by the present invention lies in providing
And the road travel road permeable pavement structure and its laying method of simple process.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of road travel road porous pavement knot
Structure.The road travel road permeable pavement structure includes water shutoff layer, base and the surface layer on soil matrix, the water shutoff layer and soil matrix
Between be equipped with strengthening layer, the strengthening layer includes concrete layer and the first waterproof layer positioned at the concrete layer top；It is described
Water shutoff layer include rock fiber be interweaved accumulation formed porous structure and be filled in the porous structure gap second
Waterproof layer；The base include set gradually from the bottom to top go to a grassroots level, middle base and upper base, it is described to go to a grassroots level and upper base
The first rubble that granularity including mutually accumulating is 9.5-31.5mm, the middle base include geotechnical grid and are filled in geotechnological lattice
The second rubble that granularity in the gap of room is 2.5-50mm；The surface layer is including layer below setting gradually from the bottom to top and above
Layer, the cutting optimal include the first gravel mutually accumulated and the third waterproof layer that is filled in first gravel gap, institute
State the 4th waterproof layer that upper layer includes the second gravel mutually accumulated He is filled in second gravel gap, described first
The average grain diameter of gravel is greater than the average grain diameter of the second gravel.
Firstly, surface layer has double-layer structure, upper layer can prevent the pollutant of larger particles in environment from entering permeable road
Face, cutting optimal can increase surface layer permeability rate, and improve the anti-cracking performance of surface layer bottom, while can realize between upper base
Even transition.Secondly, bedding has three-decker, middle base has high-strength, high voidage characteristic, provides to permeable surface layer
While reliable and stable support, the permeable pavement structure storage capacity is increased, fine day is made there are enough waters for evaporation
Humidifying air, link urban heat land effect, and upper base and going to a grassroots level realizes between middle base and permeable surface layer and strengthening layer
Even transition, keep entire pavement structure more stable；Furthermore the water shutoff layer uses rock fiber, there is good water shutoff
Property and deformation toughness, the stress that the transmitting of middle base comes can be resisted, and guarantee that the following road structure of water shutoff layer is in drying
Service Environment；Meanwhile strengthening layer pours by light-weight foamed coagulation soil scene formwork, one has high strength characteristics, can
Enough stability of strutting system are provided for upper base layer, guarantee deformation accumulation of base during military service in the deformation of permeable surface layer
Within the scope of demand for control, prevent porous pavement from structural destruction occur, two have lightweight nature, can substantially mitigate soft soil foundation
The top dead load of receiving guarantees that soft soil foundation is in the stabilization stage during military service, and third has independence, can be big
Width spreads top stress, guarantees that soft soil base sedimentation deformation is in controlled range.Finally, each structure sheaf synergistic effect, guarantees whole
A permeable pavement structure has
Further, the strengthening layer with a thickness of 40-60cm；First waterproof layer with a thickness of 2-4mm.Thus it protects
Demonstrate,prove the good characteristics such as its high-strength, lightweight and independence.
Further, the water shutoff layer with a thickness of 1-2cm；The porosity of the porous structure is 20-50%.As a result,
Ensure its water shutoff and deformation toughness.
Further, it is described go to a grassroots level and upper base with a thickness of 10-15cm；The middle base with a thickness of 15-25cm.
Thus, it is ensured that high-intensitive, high porosity and structural stability.
Further, the cutting optimal with a thickness of 6-8cm；The upper layer with a thickness of 4-6cm；First gravel
Nominal maximum aggregate size be 25-28mm；The nominal maximum aggregate size of second gravel is 11-14mm.Thereby it is ensured that surface layer is saturating
Water rate, high intensity and the interception function to pollutant.
It further, further include discharge structure, the discharge structure includes drainpipe.Thereby it is ensured that lower seep extra rainwater
Municipal drainage system can be entered along longitudinal drainage pipe.
Further, the drainpipe is set to longitudinal two sides of the base；Row is penetrated into for base's excessive moisture as a result,
Water pipe；The drainpipe is equipped with filter device.It prevents fine soil particle from entering drainpipe as a result, and then blocks drainpipe, influence
Drain function.
Further, the drainpipe is set to longitudinal two sides of the middle base and a drainpipe, institute is respectively arranged in two sides
The diameter for stating drainpipe is 50-150mm；It is arranged if going to a grassroots level, interim storage unit can be lost because moisture all flows away
Divide the function of moisture, setting can influence base's stability because water storage is excessive if upper base.The filter device packet
The through-hole through the drainpipe and the filter membrane set on the draining tube outer surface are included, structure is simple as a result, and filter effect
It is good.
Further, first waterproof layer and the second waterproof layer are by emulsified asphalt, polyurethane, polyureas, acrylate
Any several solidify；The third waterproof layer and the 4th waterproof layer are by high adhered modification pitch.Thus waterproof effect is suitable for
And cheap easily acquisition.
To achieve the goals above, according to another aspect of the present invention, a kind of road travel road porous pavement is provided
The laying method of structure.The laying method of the road travel road permeable pavement structure the following steps are included:
1) use wet density for 450-550kg/m first3Lightweight concrete poured, then use wet density for
650-750kg/m3Lightweight concrete pour, finally dispense water-repellent paint formed the first waterproof layer, finally formed on soil matrix
Strengthening layer；
2) thin pulp being made of basalt fibre and emulsified asphalt is dispensed on strengthening layer, forms water shutoff layer；
3) it is successively dispensed on water shutoff layer and goes to a grassroots level, middle base, lays drainpipe and upper base；
4) cutting optimal and upper layer are successively dispensed in upper base, makes cutting optimal and upper layer hot-hot contact moudling.
Firstly, the method that strengthening layer uses placement layer by layer, bottom density smaller (intensity is low) is poured, and expense is low；Top
Portion's density is biggish to pour (intensity is high), meets design strength requirement and economic benefit requirement." hot-hot " contacts construction molding
The construction that layer is begun the above before being layer temperature decline below, keeps upper layer and cutting optimal binding force stronger.
As it can be seen that the structure of road travel road permeable pavement structure of the invention is simple, draining and water storage function are had both, and strong
Degree is high；The simple process of the laying method of road travel road permeable pavement structure of the invention, it is practical.The present invention is very suitable
Pavement structure for littoral soft soil area sponge city runway.
The present invention is described further with reference to the accompanying drawings and detailed description.The additional aspect of the present invention and excellent
Point will be set forth in part in the description, and partially will become apparent from the description below, or practice through the invention
It solves.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to assist the understanding of the present invention, content provided in attached drawing and its
Related explanation can be used for explaining the present invention in the present invention, but not constitute an undue limitation on the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the road travel road permeable pavement structure of the embodiment of the present invention 1.
Fig. 2 is the structural schematic diagram of the drainpipe of the road travel road permeable pavement structure of the embodiment of the present invention 1.
Related label in above-mentioned attached drawing are as follows:
11: drainpipe；12: filter membrane；13: through-hole；2: soil matrix；3: strengthening layer；31: concrete layer；32: the first waterproofs
Layer；4: water shutoff layer；41: rock fiber；42: the second waterproof layers；5: base；51: going to a grassroots level；52: middle base；521: Tu Gongge
Room；522: the second rubbles；53: upper base；6: surface layer；61: cutting optimal；611: the first gravels；612: third waterproof layer；62: on
Surface layer；621: the second gravels；622: the four waterproof layers.
Specific embodiment
Clear, complete explanation is carried out to the present invention with reference to the accompanying drawing.Those of ordinary skill in the art are being based on these
The present invention will be realized in the case where explanation.Before in conjunction with attached drawing, the present invention will be described, of particular note is that:
The technical solution provided in each section including following the description and technical characteristic in the present invention are not rushing
In the case where prominent, these technical solutions and technical characteristic be can be combined with each other.
In addition, the embodiment of the present invention being related in following the description is generally only the embodiment of present invention a part, and
The embodiment being not all of.Therefore, based on the embodiments of the present invention, those of ordinary skill in the art are not making creativeness
Every other embodiment obtained, should fall within the scope of the present invention under the premise of labour.
About term in the present invention and unit.Term in description and claims of this specification and related part
" comprising ", " having " and their any deformation, it is intended that cover and non-exclusive include.Term " nominal maximum aggregate size " is
Refer to minimum sandards sieve screen size of the granule content being retained on maximum sized standard screen no more than 10%.Term " geotechnique
Cell compartment " is the high density polyethylene (HDPE) sheet material by strengthening, a kind of three-dimensional netted cell compartment structure formed through high-tenacity welding, one
As be welded through ultrasonic wave pin type, because of requirement of engineering, some is punched on diaphragm.Term " wet density " refers to that foam is light
Density when matter concrete cast in situs.
Embodiment 1
Road travel road permeable pavement structure as shown in Figure 1, including strengthening layer 3, the water shutoff layer 4, base being set on soil matrix 2
Layer 5 and surface layer 6；
The strengthening layer 3 includes concrete layer 31 and the first waterproof layer 32 positioned at 31 top of concrete layer；It is described
First waterproof layer 32 is solidified by emulsified asphalt.The strengthening layer 3 with a thickness of 50cm；The thickness of first waterproof layer 32
For 3mm.
The water shutoff layer 4 is interweaved including rock fiber 41 to be accumulated the porous structure formed and is filled in the porous knot
The second waterproof layer 42 in structure gap；The water shutoff layer 4 with a thickness of 1.5cm；The porosity of the porous structure is 35%.Institute
The second waterproof layer 42 is stated to be solidified by emulsified asphalt；The rock fiber 41 is basalt fibre.
The base 5 includes go to a grassroots level 51, middle base 52 and the upper base 53 set gradually from the bottom to top, described to go to a grassroots level
51 and upper base 53 include the first rubble that the granularity mutually accumulated is 20mm, the middle base 52 includes 521 He of geotechnical grid
The second rubble 522 that the granularity being filled in 521 gap of geotechnical grid is 30mm；The thickness of go to a grassroots level 51 and the upper base 53
For 12.5cm；The middle base 52 with a thickness of 20cm.
The surface layer 6 includes layer 61 and upper layer 62 below setting gradually from the bottom to top, and the cutting optimal 61 includes phase
First mutually accumulated gravel 611 and the third waterproof layer 612 that is filled in 611 gap of the first gravel, the upper layer 62
Second including mutually accumulating gravel 621 and the 4th waterproof layer 622 that is filled in 621 gap of the second gravel, and described the
The average grain diameter of one gravel 611 is greater than the average grain diameter of the second gravel 621.The cutting optimal 61 with a thickness of 7cm；Above described
Layer 62 with a thickness of 5cm；The nominal maximum aggregate size of first gravel 611 is 26.5mm；The most grand duke of second gravel 621
Partial size is referred to as 12.5mm；The third waterproof layer 612 and the 4th waterproof layer 622 are formed by high adhered modification bitumen solidification.
It further include discharge structure, the discharge structure includes drainpipe 11.The drainpipe 11 is set to the middle base 52
Longitudinal two sides and two sides a piece drainpipe 11 (right side is not shown) is respectively set, the diameter of the drainpipe 11 is 100mm.
The laying method of the road travel road permeable pavement structure, comprising the following steps:
1) it is compacted soil matrix 2；
1) use wet density for 500kg/m first3Lightweight concrete poured, initial set after then use wet density for
700kg/m3Lightweight concrete pour, initial set after dispense emulsified asphalt formed the first waterproof layer 32, finally formed on soil matrix 2
Strengthening layer 3；
2) thin pulp being made of basalt fibre and emulsified asphalt is dispensed on strengthening layer 3, forms water shutoff layer 4；
3) 51, the middle base 52 that goes to a grassroots level successively is dispensed on water shutoff layer 4, lays drainpipe 11 and upper base 53；
4) cutting optimal 61 and upper layer 62 are successively dispensed in upper base 53, connects cutting optimal 61 and 62 hot-hot of upper layer
Touching molding.
Embodiment 2
Compared with Example 1, the difference that the road travel road permeable pavement structure of the present embodiment has is: as shown in Fig. 2,
The drainpipe 11 is equipped with filter device, and the filter device includes through the through-hole 13 of the drainpipe 11 and set on the row
The filter membrane 12 of 11 outer surface of water pipe.
Embodiment 3
Compared with Example 1, the difference that the road travel road permeable pavement structure of the present embodiment has is:
First waterproof layer 32 is solidified by polyureas.The strengthening layer 3 with a thickness of 60cm；First waterproof layer
32 with a thickness of 4mm.
The water shutoff layer 4 with a thickness of 1cm；The porosity of the porous structure is 20%.Second waterproof layer 42 by
Urethane cures form.
The granularity of first rubble is 9.5mm, and the granularity of second rubble 522 is 50mm；51 Hes of going to a grassroots level
Upper base 53 with a thickness of 10cm；The middle base 52 with a thickness of 25cm.
The cutting optimal 61 with a thickness of 6cm；The upper layer 62 with a thickness of 6cm；The maximum of first gravel 611
Nominal particle diameter is 25mm；The nominal maximum aggregate size of second gravel 621 is 14mm.
Embodiment 4
First waterproof layer 32 is solidified by polyureas.The strengthening layer 3 with a thickness of 40cm；First waterproof layer
32 with a thickness of 2mm.
The water shutoff layer 4 with a thickness of 2cm；The porosity of the porous structure is 50%.Second waterproof layer 42 by
Urethane cures form.
The granularity of first rubble is 31.5mm, and the granularity of second rubble 522 is 2.5mm；It is described to go to a grassroots level 51
With upper base 53 with a thickness of 15cm；The middle base 52 with a thickness of 15cm.
The cutting optimal 61 with a thickness of 8cm；The upper layer 62 with a thickness of 4cm；The maximum of first gravel 611
Nominal particle diameter is 28mm；The nominal maximum aggregate size of second gravel 621 is 11mm.
Concrete layer 31 described in above-described embodiment 1-4 can use but be not limited to that " glass fiber reinforcement is light-weight foamed
The experimental study of mechanical performance of concrete " (industrial building, the 9th phase of volume 47 in 2017) light-weight foamed concrete for being announced pours
It builds.
High adhered modification pitch described in above-described embodiment 1-4 can use but be not limited to " high adhered modification pitch and draining
The pavement performance comparative experimental research of property asphalt " the high adhered modification pitch announced.
Basalt fibre can be used but is not limited to using " basalt fibre enhances tar sand in above-described embodiment 1-4
The Research on Crack Resistance of slurry " (Journal of Building Materials, ISSN 1007-9629) basalt fibre for being announced.
Related content of the invention is illustrated above.Those of ordinary skill in the art are in the feelings illustrated based on these
The present invention will be realized under condition.Based on above content of the invention, those of ordinary skill in the art are not making creativeness
Every other embodiment obtained, should fall within the scope of the present invention under the premise of labour.
Claims (10)
1. road travel road permeable pavement structure, including water shutoff layer (4), base (5) and the surface layer (6) being set on soil matrix (2),
It is characterized in that:
Strengthening layer (3) are equipped between the water shutoff layer (4) and soil matrix (2), the strengthening layer (3) includes concrete layer (31) and position
The first waterproof layer (32) in the concrete layer (31) top；
The water shutoff layer (4) include rock fiber (41) be interweaved accumulation formed porous structure and be filled in the porous knot
The second waterproof layer (42) in structure gap；
The base (5) include set gradually from the bottom to top go to a grassroots level (51), middle base (52) and upper base (53), under described
Base (51) and upper base (53) include that the granularity mutually accumulated is the first rubble of 9.5-31.5mm, middle base (52) packet
It includes geotechnical grid (521) and the granularity that is filled in geotechnical grid (521) gap is the second rubble (522) of 2.5-50mm；
The surface layer (6) includes layer (61) and upper layer (62) below setting gradually from the bottom to top, cutting optimal (61) packet
The third waterproof layer (612) for including the first gravel (611) mutually accumulated and being filled in the first gravel (611) gap, institute
State upper layer (62) include the second gravel (621) mutually accumulated and be filled in the second gravel (621) gap the 4th
Waterproof layer (622), the average grain diameter of first gravel (611) are greater than the average grain diameter of the second gravel (621).
2. road travel road as described in claim 1 permeable pavement structure, it is characterised in that: the thickness of the strengthening layer (3)
For 40-60cm；First waterproof layer (32) with a thickness of 2-4mm.
3. road travel road as described in claim 1 permeable pavement structure, it is characterised in that: the thickness of the water shutoff layer (4)
For 1-2cm；The porosity of the porous structure is 20-50%.
4. road travel road as described in claim 1 permeable pavement structure, it is characterised in that: (51) and the upper base of going to a grassroots level
Layer (53) with a thickness of 10-15cm；The middle base (52) with a thickness of 15-25cm.
5. road travel road as described in claim 1 permeable pavement structure, it is characterised in that: the thickness of the cutting optimal (61)
For 6-8cm；The upper layer (62) with a thickness of 4-6cm；The nominal maximum aggregate size of first gravel (611) is 25-28mm；
The nominal maximum aggregate size of second gravel (621) is 11-14mm.
6. road travel road as described in claim 1 permeable pavement structure, it is characterised in that: it further include discharge structure, it is described
Discharge structure includes drainpipe (11).
7. road travel road as claimed in claim 6 permeable pavement structure, it is characterised in that: the drainpipe (11) is set to institute
State longitudinal two sides of base (5)；The drainpipe (11) is equipped with filter device.
8. road travel road as claimed in claim 7 permeable pavement structure, it is characterised in that: the drainpipe (11) is set to institute
A drainpipe (11) is respectively arranged in the longitudinal two sides and two sides of Shu Zhong base (52), and the diameter of the drainpipe (11) is 50-
150mm；The filter device includes through the through-hole (13) of the drainpipe (11) and set on the drainpipe (11) outer surface
Filter membrane (12).
9. road travel road as described in claim 1 permeable pavement structure, it is characterised in that: first waterproof layer (32) and
Second waterproof layer (42) several is solidified by any in emulsified asphalt, polyurethane, polyureas, acrylate；The third is anti-
Water layer (612) and the 4th waterproof layer (622) are by high adhered modification pitch.
10. the laying method of road travel road permeable pavement structure, comprising the following steps:
1) it uses wet density to be poured for the lightweight concrete of 450-550kg/m3 first, then uses wet density for 650-
The lightweight concrete of 750kg/m3 pours, and finally dispenses water-repellent paint and forms the first waterproof layer (32), finally the shape on soil matrix (2)
At strengthening layer (3)；
2) thin pulp being made of basalt fibre and emulsified asphalt is dispensed on strengthening layer (3), is formed water shutoff layer (4)；
3) it is successively dispensed on water shutoff layer (4) and goes to a grassroots level (51), middle base (52), lays drainpipe (11) and upper base (53)；
4) cutting optimal (61) and upper layer (62) are successively dispensed on upper base (53), make cutting optimal (61) and upper layer (62)
Hot-hot contact moudling.
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| CN112394021A (en) * | 2021-01-20 | 2021-02-23 | 西南交通大学 | Indoor testing arrangement of permeable pavement structure osmotic coefficient |
| CN112784352A (en) * | 2021-04-13 | 2021-05-11 | 西南交通大学 | Intelligent paving guidance system based on Beidou and three-dimensional self-perception positioning technology |
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